Thomas corscaden



(No Model.)

T. GORSGADEN. LOOK HINGE Patented Feb. 1, 1898.

THOMAS CORSCADEN, OF NEW BRITAIN, CONNECTICUT, ASSIGNOR TO THE STANLEYIVORKS, OF SAME PLACE.

LOCK-HINGE.

SPECIFICATION forming part of Letters Patent No. 598,215, dated February1, 1898.

Application filed May 20, 1893. Serial No. 474,925. (No model.) 3

1'0 all whom it may concern.-

Be it known that I, THOMAS CORSCADEN, a citizen of the United States,residing at New Britain, in the county of Hartford and State ofConnecticut, have invented certain new and useful Improvements in SheetMetal Hinges, of .which the followingis'a specification.

My invention relates to improvements in sheet-metal hinges of the classmore particularly adapted for blind or shutter hinges; and the objectsof myimprovement are cheapness of construction and efficiency of thearticle. In the accompanying drawings, Figure 1 is a front elevation ofa pair of my hinges. Fig.

2 is a side elevation of the same. Fig. 3 is a plan view. Fig. 4 is aplan view of the blank from which the pintle-bearing leaf is formed.Fig. 5 is a plan view of a blank for forming the pintle-bearing leaf ina slightlymodified form, and Fig. 6 is a plan or top view of thecomplete pintle-bearing leaf as formed therefrom.

A designates the pintle-bearing leaf; B, the companion leaf, having aperforated wing 7, into which the pintle 8 of the leaf A is received. Iprefer to form on the leaf A an offset 9, from which depends a verticalwing 10. The wing 7 of the leaf B is slotted, as at 11, Figs. 2 and 3,and the metal immediately upon each side of this slot is bent upwardlyto form inclines or cams 12, thereby making the slot 11 in a higherplane than is the body of said wing 7. This slot 11 is designed toreceive the lower edge of the vertical wing 10 when the hinge-leaves areswung open and lock the same in place, the said wing riding up one ofsaidinclines to lift the blind and then dropping down into said slot.This class of hinges, when formed of sheet metal, have generally beenprovided with flat pintles. In my present invention I form the roundpintle 8 integral with the sheet-metal hinge-leaf. In the preferred formI make the blank substantially as shown in Fig. 4., in which 88designates the pintle-blank, and the broken lines 13 and 14 designatethe lines of transverse bends for forming the offset 9 and vertical wing10. This blank is placed in suitable dies having a recess to receive thebody of the leaf and round recesses or cavities for forming the pintle,and the dies are brought together so as to swage the pintleblank 88 inan edgewise direction and change its form from that shown in Fig. 4: tothe integral round pintle shown in Figs. 1, 2, and 3, said pintle beingsolid throughout and of a diameter about three times that of thethickness of the leaf upon which it is formed.

In Figs. 5 and 6 I have shown a blank and hinge-leaf fora rolled pin tleinstead of a solid pintle. This blank is for forming substantiallythesame form of hinge-leaf Awith the offset 9 and vertical wing 10, thesame being formed by bending on the lines 13 and 14, as beforedescribed. The pintle-blank is preferably slit slightly, as at 15, andall that portion of the blank which projects beyond the inner edge 16,Fig. 5, of the hinge-blank is rolled into a cylindrical form to form theround pintle 81, Fig. 6. This specific construction is, however, madethe subject of my application, Serial No. 47 5,228, filed May 23, 1893.By both of these constructions I am enabled to produce a hinge in whichthe leaves are attachable and detachable to and from each other, whilethey are both formed from plate or sheet metal, with one leaf having theintegral round pintle, which is received in. the

.perforated wing of the companion leaf.

I claim as my invention- The herein-described sheet-metal hingeconsisting of the leaf B having the horizontal wing 7 provided with around pintle-hole, and the upturned inclines or cams 12 with theelevated locking-slot 11 between their edges, in combination with thepintle-bearing leaf A cut and bent from sheet metal, the offset, portion9 extending outwardly from one end of the said leaf A, the vertical wing10 depending from the outer edge of the said offset portion with itslower edge adapted to engage the top face of said horizontal wing 7,

and an integral pintle, fitted to the round hole edge in the horizontalwing 7, extending from the lower edge of the said vertical wing 10, andbeing mainly below said lower edge, the diameter of the said pintlematerially eX- ceeding the thickness of the metal of which the said leafA is formed, substantially as described.

THOMAS CORSOADEN.

Witnesses: FRANK H. MARSH, E. A. MERRIAM.

